B331133131323131133132233133313231333132233132313331333112211231211111311312311   >>    B33113313132313113313223313331323133313223313231333133311221123121111131131231   <<    B331133131323131133132233133313231333132233132313331333112211231211111311312313   >>      B331133131323131133132233133313231333132233132313331333112211231211111311312312   >>